高壓膠管接頭總(zong)成構(gou)造和性能的關聯(lian)

１、橡膠軟管總成

1）高壓(ya)膠(jiao)(jiao)(jiao)管(guan)由內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)、提(ti)高層(ceng)和(he)外(wai)膠(jiao)(jiao)(jiao)層(ceng)構成（如(ru)圖(tu)例），內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)立即與液(ye)壓(ya)油(you)觸碰(peng)，故規定在(zai)長期(qi)性(xing)(xing)(xing)運行狀態下不可(ke)受液(ye)體浸蝕，能(neng)(neng)補漏(lou)。在(zai)提(ti)高層(ceng)功效下會(hui)(hui)(hui)承擔(dan)一(yi)定工作壓(ya)力。因而，宜選用丁(ding)腈(jing)橡(xiang)膠(jiao)(jiao)(jiao)，除塑膠(jiao)(jiao)(jiao)粒外(wai)，危害(hai)性(xing)(xing)(xing)能(neng)(neng)的關鍵要素也有(you)內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)的強(qiang)(qiang)度(du)(du)、薄厚(hou)(hou)(hou)和(he)永(yong)(yong)久性(xing)(xing)(xing)形(xing)(xing)變(bian)量(liang)。強(qiang)(qiang)度(du)(du)和(he)永(yong)(yong)久性(xing)(xing)(xing)形(xing)(xing)變(bian)量(liang)對密(mi)封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)(neng)危害(hai)非(fei)常大。一(yi)般(ban)強(qiang)(qiang)度(du)(du)高、縮(suo)小(xiao)后的永(yong)(yong)久性(xing)(xing)(xing)形(xing)(xing)變(bian)量(liang)小(xiao)，密(mi)封性(xing)(xing)(xing)性(xing)(xing)(xing)能(neng)(neng)則越好。一(yi)般(ban)是(shi)在(zai)７０～８５邵氏硬度(du)(du)，縮(suo)小(xiao)永(yong)(yong)久性(xing)(xing)(xing)形(xing)(xing)變(bian)５０％時(shi)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)薄厚(hou)(hou)(hou)建議是(shi)為(wei)１．５～２．５ｍｍ，太厚(hou)(hou)(hou)會(hui)(hui)(hui)在(zai)壓(ya)扣時(shi)提(ti)升其流動率，導致不必要的膠(jiao)(jiao)(jiao)在(zai)接頭芯套(tao)與橡(xiang)膠(jiao)(jiao)(jiao)軟(ruan)管(guan)的觸碰(peng)內(nei)(nei)(nei)孔內(nei)(nei)(nei)沉積(ji)，減少商品流通橫截面；過薄會(hui)(hui)(hui)在(zai)壓(ya)扣時(shi)被(bei)壓(ya)裂(lie)。另外(wai)內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)壁厚(hou)(hou)(hou)勻稱性(xing)(xing)(xing)也很重要。假如(ru)薄厚(hou)(hou)(hou)不勻，縮(suo)小(xiao)后會(hui)(hui)(hui)導致一(yi)面裂(lie)斷(duan)、一(yi)面堆(dui)膠(jiao)(jiao)(jiao)。內(nei)(nei)(nei)膠(jiao)(jiao)(jiao)層(ceng)表層(ceng)出現的浮銹也是(shi)危害(hai)性(xing)(xing)(xing)能(neng)(neng)品質的關鍵要素。

２）高壓膠(jiao)(jiao)(jiao)管(guan)關鍵借助提(ti)高層(ceng)來承(cheng)受(shou)力(li)(li)。手工(gong)編(bian)織橡膠(jiao)(jiao)(jiao)軟管(guan)是靠(kao)膠(jiao)(jiao)(jiao)漿與內外(wai)黏膠(jiao)(jiao)(jiao)粘緊，因為同(tong)一手工(gong)編(bian)織層(ceng)內不(bu)銹(xiu)鋼絲(si)(si)中(zhong)(zhong)間的(de)(de)互相觸碰，在承(cheng)擔(dan)(dan)氣(qi)體(ti)壓力(li)(li)的(de)(de)時候會(hui)因分別伸縮式(shi)不(bu)一而導致不(bu)銹(xiu)鋼絲(si)(si)彼此之間的(de)(de)摩擦而危(wei)害其使用性(xing)能。而螺旋(xuan)波紋管(guan)是由(you)盤繞方位不(bu)一樣的(de)(de)雙層(ceng)產生一個工(gong)作中(zhong)(zhong)層(ceng)，在雙層(ceng)中(zhong)(zhong)間有正中(zhong)(zhong)間膠(jiao)(jiao)(jiao)，因而同(tong)一工(gong)作中(zhong)(zhong)層(ceng)的(de)(de)雙層(ceng)不(bu)銹(xiu)鋼絲(si)(si)中(zhong)(zhong)間沒有交接點。因此 不(bu)容易在承(cheng)擔(dan)(dan)氣(qi)體(ti)壓力(li)(li)時同(tong)于不(bu)銹(xiu)鋼絲(si)(si)間的(de)(de)交叉(cha)式(shi)彎折而產生應(ying)力(li)(li)或磨(mo)擦磨(mo)壞(huai)。故使用性(xing)能好，能承(cheng)擔(dan)(dan)髙壓。

３）高壓膠管(guan)的(de)(de)外膠層粘(zhan)在提高層上起(qi)維護功效，一般選用氯丁膠。應(ying)留意避(bi)免 其脆化開裂而(er)危害全部橡膠軟管(guan)的(de)(de)使用壽(shou)命。